My experience with modafinil was quite distinct. If I started a task I could stick with it for a long time. However it was indiscriminate as to the task import

My experience with modafinil was quite distinct. If I started a task I could stick with it for a long time. However it was indiscriminate as to the task importance. It gave me a much narrower focus - when I was playing pinball at a local bar my scores dropped because I was narrowly focused on where the ball was, rather than where it would be, and I had to consciously force myself into using my peripheral vision. Another example: I was practicing hand-writing a different (non-Latin) alphabet and had a practice book. Usually I could do one or two pages and then stop for the day, wanting to do something else. On modafinil I did about ten pages' worth.